The Maps: This app uses high-quality scans of the traditional USGS and NRCan topographic maps which have been the definitive resource for hikers and other backcountry users for many years. You can make the terrain stand out with hill shading, using simulated sunlight from the direction of your choice. In the U.S., this app does not use the new "US Topo" maps because they do not show hiking trails and lack other details: please see the web site for more details.

Downloading: US maps are around 8 MB in size and download in a few seconds on a typical home broadband connection. Canadian maps are larger. Both cellular data and WiFi can be used, though WiFi is likely to be more reliable in most cases.

- Do please visit http://topomapsapp.com/ for complete instructions, so that you don't miss any features.

We have many ideas for additional features to add to future versions of this app; if you have ideas or other questions or comments, contact details can be found on the website, http://topomapsapp.com/. The website also has more screenshots and other information.

➜ What's new in version 1.16

This update is for compatibility with the iPhone 6s, along with various minor bug fixes.If you don't have an iPhone 6s there is not much to be gained by updating.

Screenshot #1

Our verdict: Good

+ Topo Maps is a highly rated app (4.5-star).

+ Topo Maps is currently ranked #47 in paid Navigation apps for iPhone.